<!DOCTYPE html>
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<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
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<body>
    <h2>关系运算</h2>
</body>
<script>
    let a=10;
    let b='10'

    console.log(a!=b)
    console.log(a!==b)
   
</script>
</html>